The DIODES™ AL5887 is comprised of 36 programmable LED current channels each with internal 12-bit PWM for color and brightness control through SPI or I2C digital interface. AL5887 is ideal for up to 12 RGB LED modules lighting applications with 3 programmable banks (A, B, C) for software control of each color. An external resistor can set up the global output current of all 36 channels. Each channel current can digitally be configured up to 70mA under the thermal limitation of the package.
Features of the AL5887 are controlled via SPI/I2C digital interface. Using a dedicated pin INT_SEL to select either SPI or I2C protocols. The AL5887 has a 30kHz, 12-bit PWM generator for each channel, as well as channel/module independent color mixing and brightness control registers to enable vivid LED effects with zero audible noise. Users can benefit from the device’s ultra-low shutdown IQ Power Saving Mode and easy software programming.
The device operates over -40°C to +85°C ambient temperature range. The AL5887 is available in W-QFN6060-52/SWP (Type A1) package.
Input Voltage: 2.7V to 5V
36 Precision LED Current Sinks
OUT Pins Voltage Max. 5.5V
A Maximum of up to 70mA per Channel Current
Device to Device and Channel to Channel Current Accuracy: < 2% at 7mA to 70mA, and < 3.5% at 1mA to 7mA
12-Bit (4096 Steps), 30kHz PWM Generator Integrated for Each Channel
PWM Phase Shifting
6-Bit Global Current Dimming
Independent Color-Mixing Register per Channel
Independent Brightness Control Register per RGB Module
Optional Logarithmic- or Linear-Scale Brightness Control
Three Programmable Banks (A, B, C)
Serial Digital Interface (I2C/SPI)
Support 400kHz I2C Interface (Default)
Two External Hardware Address Pins Allow Connecting up to Four Devices (I2C Only)
4MHz SPI Compatible Digital Interface (INT_SEL Pin = HIGH)